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RAILWAY GAR TRUCK.

No. 86,416. Patented Feb. 2, 1869.

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RAILWAY OAR TRUCK. No 86,416. Patented Feb. 2,1869.

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JAMES KIRKLEY AND HUGH GRAY, OF CHICAGO, ILLINQIS.

, mum Patent No. 86,416, dated February 2, 1869.-

ROVED WAY-CAR TRUCK.

The fichedulo referred to in those Letters Patent and g pan: of the am To all whom it may comem:

Be it known that we, JAMES KIRKLEY and HUGH GRAY, of Chicago, in the county of Cook, and State of Illinois, have invented certain new and useful I mprovements on the Construction ofRailroad-Oar Trucks; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making apart of this specifiers tion, in which-- Fignre 1, sheet 1, is a top view of a six-wheel truck, constructed after our invention. v

Figure 2, sheet 1, is an elevation oil one side of our improved truck.

F gure 3, sheet 1, is a longitudinal section through one side of the truck, taken in the vertical plane indicated by line a; a; in fig. 1.

Figure 4, sheet 2, is a perspective view, showing the nninner of uniting the cross-girders or bars to the longitudiual girders,

Figure 5, sheet 2, is a sectional view enlarged, taken in the vertical planes indicated by line pp in fig. 1, showing one mode of uniting the intermediate girders to the longitudinal girders.

Figure 6, sheet 2, shows another mode of connecting the ends of the intermediate transverse girders to the longitudinal girders.

Figure 7, sheet 2, is a section taken transversely through two of the intermediate transverse girders, showing port-ions of two of the stirrnps which sustain the swing-beam. I

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to certain novel improvements on the construction of iron trucks for railway passengercars, whereby the tram e-work of iron trucks can be made much stronger and. more durable, with a given weight of metal, than can be done under the modes hitherto ad pted of constructing truck-frames.

One object of our invention is to employ, in the construction oi car-trucks, thin plates or bars of metal,

and to unite these bars in such manner as to form compound girders, which will possess great strength and stiffness, both vertically and laterally.

Another object is to so construct, combine, and arrange thecompound girders in a truck-frame, that they can he firmly secur d together at their ends,- so as to form rigideonnections a these points, and also so that the girders afibrd lfiQdlrs for rigidly attaching to them, in a very complete in anner, the several parts which are necessaryto complete the truck, as will be hereinafter explained.

To enable others skills-1 in the art to understand our invention, we will describe its construction and operation.

The drawings represent a-six-wheel truck, adapted for passenger cars or coaches, the general arrangement of whichis the same as is now commonly adopted 1n the C O, the journal-boxes, which are free to slide in the I pedestals.

D, the ties and braces, which extend from one end to the other of the frame A, and serve to strengthen the pedestals and frame,

E E are equalizing-bars, which are supported upon the journal-boxes, and which have springs F interposed between them and the longitudinal girders, so that the weight of the superimposed load will be equally distributed upon the several journal-boxes.

G G are the car-wheels, the axles of which may be applied to the journal-boxes C- in the usual well-known manner.

There are six wheels applied to the frame shown in the drawings, but in carrying out our invention, we shall construct frames adapted for four wheels or for eight wheels, as may be required.

H H represent the transverse swing-beams, which are suspended from intermediate transverse girders of frame A, by means of hangers or laterallyswinging stirrups'J J, and rocking blocks J J; and

K K represent springs, of an elliptic or other form, which are supported upon swing-beams H, and upon which springs the frame L nests, as shown in the drawin s.

it will thus be seen that the general arrangement of the several parts composing the truck shown in the drawings, is substantially the same as is adopted in the construction of six-wheel" trucks which are chiefly of wood.

The truck-flame A is composed of thin strips or bars of meta-l, so arranged and combined, that the whole strain of the superimposed load is supported by the depth of the bars, the requisite stiii'ness laterally being given tothem, by securing,,thcui together in the following manner: Each one of the longitudinal or side girders P of the frame A, is composedof two thin strips or bars a 0', secured together so as to leave a narrow. space between them, by means of rivets or bolts 03 d, which pass through holes made throughsaid bars, and also through ferrules or spacing tubes c, which tubes are interposed between the bars c 6', and serve to hold the latter apart, and form bearings for making rigid connections, which will prevent'the bars from yielding under lateral strain.

' As a further means for strengthening the girdersP P, and of uniting in a firm manner the pedestals B to them, the upper solid portions of these pedestals are reduced, and inserted between the burs c c, and secured in place thereto by means of rivets or bolts, as clearly showuin sheet 1. z

The outer strip or bare of each girder P has its extremities hooked inward, and the ends of the inner bar 0 of each girder has right-angular foot-pieces formed longer than the inner bars 0 0' thereof, and to the ends of these girders the angular ends h h of single bars R R,

. which are of greater depththan thickness, are secured by rivets passedthrough angles h 7a ,and through the outer bars-c c, as shown.

' The inner bars .0 c are then bolted or riveted by their" T angles to the cross-bars R.

This gives three points of security at each corner'of the frame A, and atfords rigid connections.

The transverse girders S S, which are arranged between the single end bars R- It, and intermediate longitudinal braces and tie-bars T T, are constructed of thin bars, of greater depth than thickness, united in pairs by rivets and spacing-ferrules as described, for the longitudinal girders P P, and as clearly shown in figs. 1 and 6. Y

The girders S S are designed for tying together latcrallythe side girders I, and preventing lateral thrust thereof, and also for sustaining the spperincumbent load. i

Four of these girders S are shown in the drawings, arranged in pairs, at proper distances apart, to have suspended from them the hangers or stirrup's J J, that carry the swing-beams H.

The-castings g g, which are applied to the girders S, on opposite sidesof each hanger J, i'or'the purpose of" keeping it inits place, are riveted or bolted firmly between the two bars composing each girder 8 and assist in stifiening the same.

These pieces 9 g are clearly shown in the sectional view, figs. 5 and 7. c

We have represented in the drawings two modes of securing the endsof the cross-girders .S S to the side girders-l? P, one of which modes'iSshown in fig. 5, and

the other in fig. 7.

In fig. 5, the'braciret E is strongly bolted or riveted between the two bars forming the girder S, and that portion oi" this bracket which extends beyond the endof the girder s, rests upon the top edge of the longitndinal girder I, and sustains said girder S thereupon, against downward pressure.

v By means-of rivets, the angular ends or i'eet'of the girders S are secured to the girder P. I

In fig. 7, the girder Phase block. V, confined in it loweredge of the girder P, so as to form a tie. I Through the chair 1' and the block V, a rivet or bolt,

'n, is passed, for the purpose of confining the parts in place.

In addition to this fastening, the angular ends or feet of the girder S are secured to the inner plates of the girders i. 3

"Having described our intent-ion,

What we claim' as new, and desire to secure by Letters"Patent,'is-- I. The combination of thin metal bars o 0', tubes or thimbies e e, and bolts or rivets d, in the formation of side and transverse girders P S of a railroadcar truck, substantially in the manner shown and described.

2. The combination of the hooking and angular ends of the two thin metal bars a c, with the angular ends of the single thin metal bars or girders R, substantially in the mariner described and shown.

3. The transverse girders S S, made of thin metal bars, such as c c, and united and stayedby thimbies or tubes, and bolts or rivets, such as d e, and constructed with brackets N, in combination with the girders P, composed of thin metal bars a c, all substantially in the manner shown and described.

4. The pedestals B, having their upper ends reduced andnrranged between the thin metal bars 00', which, with the tubes and bolts d e, compose the side girders, all in the. manner shown and described; and for the purpose set forth.

5. The combination of the stay-stops g, and the brzwhet-stops N, and the thin metal side-beams c c, in such manner that the hangers J J can be applied upon and hung to swing between the plates 0 0, substantially as shown.

(i. The combination oi I116 liook-bmcketsi,bloc1is "V, and thin platesc c of the-girders S, shbstantiallv as herein described and shown. I

'7. The thinmetzil bar truck-flame, having side and transverse beams, and its pedestals, all constructed, stayed, and united together in the manner shown and described, 4

. JAMES KIRKLEY.

' HUGH Witnesses F. D. MEAD, h. L. PHILLIPS. 

